A5051424945- Geological and Geochemical Analysis
- Geochemistry and Geologic Mapping
- Geology and Paleoclimatology Research
- Archaeology and Natural History
- earthquake and tectonic studies
- Botany, Ecology, and Taxonomy Studies
- Geological Modeling and Analysis
- Geography Education and Pedagogy
- Rangeland and Wildlife Management
- Geographic Information Systems Studies
- Hydrocarbon exploration and reservoir analysis
- Geological formations and processes
- Synthesis and Catalytic Reactions
- Geological Studies and Exploration
- High-pressure geophysics and materials
- Synthesis of β-Lactam Compounds
- Science Education and Pedagogy
- 3D Modeling in Geospatial Applications
- Spatial Cognition and Navigation
- Problem and Project Based Learning
- Mineralogy and Gemology Studies
- Innovative Teaching and Learning Methods
- Geological and Tectonic Studies in Latin America
- Catalytic C–H Functionalization Methods
- Radioactive element chemistry and processing
University of Reading
2024
Arizona State University
2007-2023
University of Dayton
2021
Heythrop College, University of London
2014
Earth and Space Research
1993-2012
University of Iowa
1999
North Carolina State University
1997
University of Nottingham
1989-1994
Arizona Geological Survey
1985-1992
The University of Texas at Austin
1992
Research Article| January 01, 1986 Structural evolution of the Whipple and South mountains shear zones, southwestern United States Gregory A. Davis; Davis 1Department Geological Sciences, University Southern California, Los Angeles, 90007 Search for other works by this author on: GSW Google Scholar Gordon S. Lister; Lister 2Bureau Mineral Resources, P.O. Box 378, Canberra, A.C.T. 2601, Australia Stephen J. Reynolds 3Arizona Bureau Geology Technology, 845 North Park Avenue, Tucson, Arizona...
Research Article| April 01, 1987 Structural aspects of fluid-rock interactions in detachment zones Stephen J. Reynolds; Reynolds 1Arizona Bureau Geology and Mineral Technology, 845 North Park Avenue, Tucson, Arizona 85719 Search for other works by this author on: GSW Google Scholar Gordon S. Lister 2Bureau Resources, Canberra 2601, Australia Author Article Information Publisher: Geological Society America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print 0091-7613 (1987) 15 (4):...
Large‐magnitude Miocene extension in west central Arizona occurred primarily along three imbricate, northeast dipping normal faults. The structurally highest of these faults, the gently Buckskin‐Rawhide detachment fault, accommodated approximately 66 km crustal extension, whereas two lower faults a total about 20 extension. Due to this large‐magnitude an area at Earth's surface that was 10 wide is now over 100 wide, and crystalline rocks with mid‐Tertiary mylonitic fabrics, uncovered by...
Increasing awareness of the impacts global climate change on marine ecosystems and concerns about shifting bioclimatic agricultural zones necessitate a reassessment geographical distribution Earth’s types. In recent years, availability truly data-sets has allowed for application climatic types, including Kӧppen–Geiger system, over oceans. This research uses NCAR Reanalysis data to create ‘Extended classification’, world ocean, 1981−2010 averaging period. The percentages surface covered by...
Apatite fission track thermochronologic results from transects across the Basin and Range Transition Zone provinces in west central Arizona provide constraints on denudational history structural framework of region. ages decrease ∼21 to 14 Ma Harcuvar Mountains ∼16 13 Buckskin‐Rawhide slip direction (SW ‐ NE) detachment faults lower plates metamorphic core complexes. Mean lengths confined tracks complexes are all >14 μm, indicating that apparent apatite record rapid cooling through...
Research Article| May 01, 1985 Evidence for large-scale transport on the Bullard detachment fault, west-central Arizona Stephen J. Reynolds; Reynolds 1Arizona Bureau of Geology and Mineral Technology, 845 North Park Avenue, Tucson, 85719 Search other works by this author on: GSW Google Scholar Jon E. Spencer (1985) 13 (5): 353–356. https://doi.org/10.1130/0091-7613(1985)13<353:EFLTOT>2.0.CO;2 Article history first online: 01 Jun 2017 Cite View This Citation Add to Manager Share Icon Facebook...
Research Article| March 01, 1990 Folding of mylonitic zones in Cordilleran metamorphic core complexes: Evidence from near the front Stephen J. Reynolds; Reynolds 1Arizona Geological Survey, 845 N. Park Avenue, Tucson, Arizona 85719 Search for other works by this author on: GSW Google Scholar Gordon S. Lister 2Department Earth Sciences, Monash University, Melbourne, 3168 Australia Author and Article Information Publisher: Society America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print...
Climate types, biome and soil orders are commonly used among physical geographers in research to describe natural environmental characteristics. However, little attempt has been made quantify the percentage of global land surface that is covered by combinations climate biomes, orders. This overlays a world map 31 types produced based on Köppen–Geiger criteria using gridded NCAR/NCEP reanalysis monthly mean air temperature precipitation data from 1981 2010 with maps eight biomes adapted World...
Among the sciences, practice of geology is especially visual. To assess role spatial ability in learning geology, we designed an experiment using: (1) web‐based versions visualization tests, (2) a geospatial test, and (3) multimedia instructional modules built around QuickTime Virtual Reality movies. Students control experimental sections were administered measures orientation visualization, as well content‐based examination. All subjects improved significantly their scores on There was no...
The Maria fold‐and‐thrust belt (MFTB) is a narrow of Mesozoic crustal shortening that trends east‐west across west central Arizona and adjacent southeastern California. It characterized by generally south vergent folds thrusts commonly displace Proterozoic crystalline rocks over deformed metamorphosed Paleozoic strata. MFTB cut to southeast trending mid‐Tertiary extensional deformation. Extension was large displacements on low‐angle normal faults, known as detachment isostatic uplift...
AbstractTo promote active learning and increase student involvement in their own knowledge construction, we have implemented the use of concept sketches, which are simplified sketches that concisely annotated with processes, concepts, interrelationships, addition to labels features. When instructor-generated, they help students see how organize explain our knowledge. Students can generate after seeing animations, video clips, photographs, detailed textbook-style illustrations. They also...
Cenozoic magmatism in southwestern Arizona, which is within the Basin and Range tectonic province, occurred almost entirely between 15 25 Ma. Volcanic rocks typically consist, ascending order, of (1) a thin sequence mafic to intermediate lava flows, (2) voluminous felsic flows pyroclastic with minor moderate amounts (3) basalt andesite. rock sequences rest disconformably on pre‐Tertiary bedrock most areas but locally overlie substantial coarse clastic debris that was deposited immediately...
Subparallel ridges and troughs in the outer belt of Arden Corona, on Uranian satellite Miranda, are interpreted as tilt blocks formed by extension normal faulting. Fault scarps generally face outward from corona, exposing dark material subsurface. Reconstruction faults along a deep rift zone bounding corona suggests initial dips ∼50°. Local reaches ∼70%, extremely high comparison to previous estimates strain icy satellites. A rise adjacent is modeled flexural indicates an effective elastic...
Research Article| October 01, 1988 K-metasomatism and detachment-related mineralization, Harcuvar Mountains, Arizona MICHAEL S. RODDY; RODDY 1Department of Geosciences, University Arizona, Tucson, 85721 Search for other works by this author on: GSW Google Scholar STEPHEN J. REYNOLDS; REYNOLDS 2Arizona Geological Survey, 845 North Park Avenue, 85719 BRIAN M. SMITH; SMITH 3Unocal Science Technology; Box 76, Brea, California 92621 JOAQUIN RUIZ GSA Bulletin (1988) 100 (10): 1627–1639....
Upper Triassic sandstones in diverse locations eastern California, southern Arizona, and on the Colorado Plateau (USA) yield detrital zircons that are remarkably similar age geochemistry, leading to hypothesis they temporally related were derived from sources. Volcaniclastic sandstone lowest Vampire Formation Sonsela Member of Chinle at Petrified Forest National Park, northeastern herein-named Waterman formation Arizona range ca. 205 235 Ma. Together with ages, these uniformly have Th/U...